SC657 datasheet(19/22 Pages) SEMTECH

Il numero della parte	SC657

Spiegazioni elettronici	Backlight Driver for 5 LEDs with SemPulseTM Interface

PDF	22 Pages

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Produttore elettronici	SEMTECH [Semtech Corporation]

Homepage	http://www.semtech.com

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Third Backlight Current Control Register (03h)

This register is used to set the currents for the backlight

current sinks assigned to the Third Backlight Group. This

group can also be used to control blue LEDs for limited

RGB control. These current sinks need to be enabled in the

Backlight Enable Control register to be active.

Bit D5

This bit is unused and is always a zero, so the maximum

pulse count for this register is 3.

TBL4 — TBL0 [D4:D0]

These bits are used to set the current for the third back-

light current sinks. All enabled third backlight current

sinks will sink the same current, as shown in Table 6.

Table 6 — Third Backlight Current Control Bits

TBL4

TBL3

TBL2

TBL

TBL0

Backlight Current (mA)

See note

0.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

6.0

7.0

8.0

9.0

() Reserved for future use

SC657

SC657 Scheda tecnica(PDF) 19 Page - Semtech Corporation